• Journal of Preventive Medicine and Public Health
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• 제26권4호
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• pp.628-649
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• 1993

국민학생들의 학습부진에 관련된 요인을 조사하여 의학적 예방 및 치료 대책을 고안해 보기 위해, 대구 시내에서 고소득층 밀집지역과 저소득층 밀집지역의 국민학교 1개씩을 선정하고, 각 학교의 2, 4, 6학년 학생 중 학업 성적이 하위 10%에 속하는 학생(학습부진군) 175명과 이에 대한 대조군으로 성적이 상위 5%에 속하는 학생(우수군) 97명을 대상으로 하여 이들에게 시력검사, 청력검사, 신체검사(체중, 신장, 두위)를 한 후, 고대 Stanford-Binet test를 이용한 지능검사와 TAI-K로 시험불안반응검사를 하고 발달소아학 전문의사가 신경학적 검진을 하였다. 아동의 어머니에게는 가정 환경, 어머니의 출산력, 아동의 출생 전후 및 과거력에서 의학적 특이사항, 그리고 행동양상에 관해 설문조사하고, 담임 선생에게 설문지를 통해 학교에서의 행동양상을 조사하였다. 아동의 두발을 적당량 채취하여 두발중 납, 카드뮴, 아연의 함량을 원자흡광분광광도계로 분석하였다. 학습부진과 각 요인과의 단순상관 관계분석에서 통계적으로 유의한 요인들을 이용한 다중지수형 회귀분석 (multiple logistic regression analysis)을 하여 학습부진의 관련요인을 찾았다. 단순분석에서 학습부진과 유의한 관련성이 있는 것은 남아인 경우, 출산순위가 높은 경우, 결손가정인 경우, 부모의 학력이 낮거나 직업이 노동직인 경우, 아동의 체중, 신장 및 두위가 작은 경우, 시력장애가 있는 경우, 지능지수가 낮은 경우, 시험불안반응점수가 높은 경우, 과잉활동성 아동인 경우로 나타났다. 다중지수형 회귀분석결과 학습부진과 관련되는 요인은 아동의 높은 출산순위 (odds ratio=2.06), 남아인 경우(odds ratio=5.91), 결손가정(odds ratio=9.29), 신장이 표준치-1 표준편차보다 작은 경우(odds ratio=11.12), 높은 시험불안점수(odds ratio=1.07), 과잉활동성 장애아동(odds ratio=9.67), 그리고 지능지수(odds ratio=0.85)였다. 두발중 중금속 함량의 분석결과 모두 학습부진과 뚜렷한 관련성이 없었으며, 납과 카드뮴의 함량은 학습부진군과 우수군 모두 남아가 여아에 비해 높았으며, 남은 학년과 역상관 관계(p<0.05)를, 아연은 정상관 관계(p<0.05)를 나타내었다. 학습부진과 유의한 관련성이 있는 요인들 중 조정가능한 것은 출산순위, 신장, 과잉활동성 장애 등으로, 가족계획을 통해 알맞은 수의 자녀를 갖도록 하고, 영유아기에서부터 사춘기에 이르기까지 적절한 영양공급을 하며, 과잉활동성 아동을 조기에 발견하여 의사의 진단을 받아 치료를 받도록 하는 것이 학습부진을 예방 및 해결하는데 도움이 될 것이다. 또한 부모와 담임 선생이 학습부진아에게 본인의 지적능력 이상의 기대나 학습의 강요로 불안을 조장하지 않도록 해야 할 것이다.

• Clinical and Experimental Pediatrics
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• 제49권9호
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• pp.966-971
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• 2006

목 적 : 성인의 심혈관질환은 태아발달 동안이나 이른 어린이 시기부터 시작된다는 태아프로그래밍 개념과 출생시 작게 태어난 경우에 성인기에 혈압이 상승된다는 연구들을 고려하여 볼 때, 출생시기부터의 혈압 변화에 대한 연구가 필요함을 느꼈다. 본 연구에서는 신생아의 여러 자궁내 발육 지표와 신생아의 혈압 관련성에 대해 살펴보고자 하였다. 방 법 : 이화여자대학교 목동병원에 내원한 임산부 중 연구참여에 동의한 산모를 대상으로 코호트를 구축하고 이들의 127명의 출생아에 대한 의무기록에 근거하여 자료를 추적, 수집하였고, 생후 24시간 이내에 신생아의 혈압을 측정하였다. 결 과 : 신생아 수축기 혈압과 태내 성장지표는 유의한 양의 상관관계를 보였다; 출생체중(r=0.4), 머리둘레(r=0.4), 출생신장(r=0.3). 그러나 체중대비 머리둘레 비는 신생아 혈압과 유의한 음의 상관관계를 보였다(r=-0.4). 아기의 성과 엄마의 혈압수준, 재태연령을 보정한 상태에서도 신생아 수축기 혈압은 태내 성장지표와 연관성을 보였다. 수축기 혈압은 출생체중이 가장 높은 군에서(90 백분위수 이상) 낮은 군과 비교하여(10 백분위수 미만) 7 mmHg 높았다, 한편 출생체중 대비 머리둘레의 비가 가장 높은 군(90 백분위수 이상)에서 낮은 군(10 백분위수 미만)에 비해 17 mmHg 낮게 나타났다. 결 론 : 우리 연구 결과 자궁내 성장 지연이 신생아의 혈압을 높이는데 영향을 미치는 것을 관찰할 수 없었다. 혈압 프로그래밍은 출생 이후에 성장기간에 시작되는 것으로 생각된다. 자궁내 성장지연으로 인해 혈압이 상승하는 주요 시작 지점이 언제인지 알아보기 위해서 출생 이후부터 따라잡기 성장과 함께 아동기시기 혈압 변화에 대한 지속적인 연구가 필요하다.

• Clinical and Experimental Pediatrics
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• 제51권7호
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• pp.704-712
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• 2008

목 적 : 최근 모유수유의 장점이 부각되고 있으나 모유가 미숙아 전용분유에 비해 열량을 포함한 영양소들이 미숙아들의 적절한 성장을 유도하기에는 낮아 이를 극복하기 위한 모유강화제가 개발되었다. 본원에서는 극소저체중출생아들을 대상으로 모유강화제를 첨가한 모유를 수유한 경우와 미숙아 전용분유를 수유한 경우를 비교하여 성장에 어떠한 효과를 미치는지 알아보기로 했다. 방 법 : 2005년 10월부터 2006년 12월까지 동아대학교의료원에서 출생하여 신생아 집중치료실에 입원한 출생체중 1,500 g 이하, 재태주령 33주 미만인 극소저체중출생아들을 대상으로 강화된 모유수유군과 미숙아 전용분유 수유군으로 나누어 전반적인 특징, 영양상태, 성장 추이 및 합병증의 발생 등을 전향적으로 비교 조사하였다. 대상 환자들 중 본원에서 추적관찰이 가능했던 환자들의 경우 외래에서 1, 3, 6개월에 걸쳐 체중, 신장, 두위를 측정하여 비교하였다. 결 과 : 두 군의 평균 재태주령 및 출생체중은 각각 $30^{+1}{\pm}2^{+1}$주과 $29^{+4}{\pm}2^{+1}$주, $1,281.30{\pm}178g$과 $1,234.32{\pm}193g$으로 통계학적으로 차이가 없었으며(P=0.26, P=0.38), 성비, 괴사성 대장염, 패혈증, 신생아호흡곤란증후군, 동맥관개존증, 뇌 내출혈 및 뇌실 내 출혈 등의 합병증의 비율, 평균 재원 기간에서도 유의한 차이는 없었다. 수유 시작 시기는 강화된 모유수유군과 미숙아 전용분유 수유군에서 각각 생후 $8.00{\pm}3.27$일 및 $8.86{\pm}5.37$일(P=0.99), 완전수유 도달 시기는 각각 수유시작 후 $41.78{\pm}20.47$일 및 $36.86{\pm}20.63$일로(P=0.55) 통계적으로 유의한 차이가 없었으며, 총정맥영양 기간 및 수유 곤란증상 횟수에도 유의한 차이는 없었다. 수유시작 시점부터의 체중, 신장, 두위의 성장 속도 및 절대치도 두 군 간에 유의한 차이가 없었으나 각 시점의 평균치를 비교하였을 때 수유 시작 후 7주째 체중은 강화된 모유수유군에서 더 빨리 증가하였다(P=0.03). 환자들의 초기 체중 감소 후 출생체중까지 회복되는데 걸리는 기간도 각각 $22.3{\pm}6.92$일 및 $24.32{\pm}10.68$일로 통계학적 차이는 없었으며(P=0.41), 체중 회복 후부터 퇴원까지의 체중 및 두위, 신장의 증가속도는 두 군에서 유의한 차이는 없었다. 퇴원 후 외래 추적 관찰을 한 각 군의 환자들의 체중, 신장, 두위의 평균치에도 유의한 차이는 없었다. 결 론 : 극소저체중출생아에서 모유강화제를 포함한 모유수유군과 미숙아 전용분유 수유군 간의 전반적인 성장 상태, 생화학적 검사 수치 및 합병증 발생에는 유의한 차이가 없어 모유 강화제는 고열량 수유를 필요로 하는 극소저체중출생아에서 부가적인 선택 사항이라고 하겠다.

• 대한지역사회영양학회지
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• 제14권3호
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• pp.327-339
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• 2009

It is known that Korean pregnant women take iron supplements at a higher than the recommended level. This study was designed to provide data on current iron intake levels both from food sources and supplement to better guide iron supplement use during pregnancy. We also explored associations of iron supplement intake levels with various sociocultural factors and pregnancy outcomes. Dietary intakes of 510 pregnant women were assessed by a validated 102-item food frequency questionnaire, and information on types and amounts of nutritional supplement intakes were also attained. While dietary intake levels of most nutrients exceeded the KDRIs (Korea Dietary Reference Intakes: EAR: Estimated Average Requirements), folate fell short of the KDRIs. A total of 428 women (83.9%) reported to take iron supplement. The pregnant women were divided into the three groups (group I: Fe supplement intake ${\le}$ EAR, group II: EAR < Fe supplement intake ${\le}$ 3 times of EAR, group III: 3 times of EAR < Fe supplement intake). The mean dietary intake of iron was 24% of the total iron intake for pregnant women. Iron intake from food was not significantly different among I, II, and III. In case of iron intake from supplements, the most frequent dose (34.1%) was 90-100 mg/day, and the mean iron supplement intake was 362% of the EAR. The study findings showed that those with higher levels of iron supplements had better meal quality measured by NAR (Nutrient Adequacy Ratio) and INQ (Index of Nutrient Quality). In addition iron supplement intake levels were significantly related to age (20s: 66.5 ${\pm}$ 38.6 mg/day, 30s: 77.3 ${\pm}$ 47.8 mg/day, p < 0.0116) and experience of childbirth (1st pregnancy: 70.9 ${\pm}$ 41.2 mg/day, 2nd pregnancy: 64.5 ${\pm}$ 39.5 mg/day, ${\ge}$ 3rd pregnancy: 94.4 ${\pm}$ 63.8 mg/day, p < 0.005). However, no significant difference was found between iron supplement intake levels and various pregnancy outcomes including birth weight, birth height, gestational age, weight gain during pregnancy, and jaundice. It is worrisome that iron intake by supplement use greatly exceeded the EAR, suggesting the need of appropriate guidelines for iron supplement intake during pregnancy. Thus iron overdose from supplements in pregnancy should be considered as a serious condition.

• Journal of Nutrition and Health
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• 제39권3호
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• pp.264-273
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• 2006

Elevated maternal plasma homocysteine concentrations have been associated with adverse pregnancy outcomes. Serum homocysteine levels may be affected by the MTHFR genotypes and the nutritional status of B vitamins including vitamin $B_2,\;B_6$, folate and vitamin $B_{12}$. We investigated whether postnatal growth measurements were influenced by maternal MTHFR genotypes and their mid-pregnancy serum vitamin B and homocysteine levels. In 130 pregnant women of 24-28 wks of gestation, the MTHFR genotypes, serum B vitamins and homocysteine concentrations were analyzed. Physical growth status was assessed in their offsprings by measuring height, weight, and head and chest circumferences from birth up to 24 months. Serum homocysteine levels were higher in the subjects with T/T genotype than those with the C/T or C/C. Heights and head and chest circumferences of offsprings from the T/T mothers were significantly lower than those from the C/C or C/T mothers only when the serum homocysteine levels were above the median. The mean height of offsprings from the T/T mothers was significantly lower than those from the C/C and C/T mothers. The mean weight and head circumferences of offsprings born from the mothers whose mid-term pregnancy PLP levels were in the lowest quartile was significantly lower than those from mothers in the highest quartile. Heights and head circumferences of offsprings from the T/T mothers were significantly lower than those from the C/C or C/T mothers only when the serum FAD levels were in the lowest quartile. These results suggest that postnatal growth up to 24 months may be influenced by the maternal C677T MTHFR genotypes, and mid-pregnancy serum homocysteine and vitamin B status.

• Asian-Australasian Journal of Animal Sciences
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• 제25권7호
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• pp.980-987
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• 2012

In order to investigate the effect of physical forms of starter diets on performance, weaning age, nutrient digestibility and rumen biochemical factors, 24 female of neonatal Brown Swiss calves (average body weight of $39.5{\pm}1.2kg$) were randomly assigned to three treatments. Dietary treatments were mashed (MS), pelleted (PS), and texturized (TS) starter using 8 calves from birth till 90 days of age in each treatment. Diets were formulated to be iso-nitrogenous with 21% crude protein. Based on the experimental results, calves that received PS and TS diets, had significant higher average daily gain (ADG) than those receiving MS (p<0.01). Dry matter intake in calves fed PS and TS was greater than calves fed MS (p<0.05), but there was no significant difference in feed efficiency. Treatments had no effect on initiation of rumination. Weaning age of calves in MS was longer than the other two treatments (p<0.05). Crude protein and organic matter digestibility in MS treated calves were lower than other treatments (p<0.05). No differences were observed in neutral detergent fiber (NDF) and ash digestibility among treatments (p>0.05). Ruminal pH was higher (p<0.01) in MS than the other groups, but ruminal ammonia (g/dl) concentration was not different among the treatments. Body measurements such as body length, pin width, hip width, pin to hip length, size of metacarpus and metatarsus bones, hip height, wither height, stomach size and heart girth were not significantly different among the treatments. Overall, it is concluded that starter diets in the form of pellet and texture can improve performance in neonatal Brown Swiss calves compared to the mashed form.

• 대한간호학회지
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• 제40권2호
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• pp.277-286
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• 2010

Purpose: This study was done to investigate the effects of breast-feeding education and support services on rate of breast-feeding three and six months after birth, and the effect on infant's growth (weight, height, body mass index [BMI]). The experimental group which had both education and support services was compared with the control group which had only breast-feeding education. Methods: This study was a quasi-experimental study with a time-series design. The participants were 39 mothers who were hospitalized for childbirth. Twenty mother were assigned to the experimental group and 19 mothers, to the control group. The breast feeding education was done during hospitalization, and support services were provided once a week after discharge for a month (a total 4 times) by a maternity ward nurse. Data regarding breast-feeding rate at one month after childbirth was collected by phone call; the breast-feeding rates at three and six months after childbirth were collected in a visit to the families. The child's weight and height were also measured during the visit. Results: The experimental group had a statistically significant higher rate for frequency of breast-feeding at one, three and six months after childbirth than the control group. However, there was no meaningful difference between the two groups for infant growth. Conclusion: The results of this study suggest that breast-feeding education is helpful for a start, but support services are also necessary to sustain breast-feeding.

• 동아시아식생활학회지
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• 제15권4호
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• pp.397-404
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• 2005

The propose of this study was to investigate taurine intake in formula-fed and breast-fed infants and to estimate the level of taurine of blood and urine in order to determine the requirement of taurine intake in infants. These results will be useful to suggest the guideline of requirement of taurine intake and may contribute toward the proper use of breast milk substitutes. Experimental groups were breast-fed infants (n=10) and formula-fed infants (n=10) of 20 normal delivery infants in general hospital. This study was longitudinal study from birth up to 16weeks (0 week, 4 weeks, 8 weeks, 12 weeks, 16 weeks). The items of test were anthropometry(weight, height, head circumference, chest circumference), intake of taurine, taurine level of blood and urine in breast-fed and formula-fed infants. There were no significant differences between breast-fed and formula-fed infants in weight, height, head and chest circumference. There is a need for future studies of exclusive infants with larger samples to determine which growth pattern should be considered as the norm. Taurine concentration of plasma and urine did not differ between breast-fed and formula-fed infants. Taurine intake recommendations for infants is about 30mg/day from this study. This data will be useful for production of human-like formula milk and suggestion of an index of selection of a consumer in taurine.

• Journal of Animal Science and Technology
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• 제52권6호
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• pp.481-490
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• 2010

This study was conducted to characterize the morphological and behavior patterns of Sapsaree dogs. The population (n=8,256) has been constructed since 1990 over 12 generations and managed at the Sapsaree Breeding Research Institute, Gyeongsan, Gyeongbuk province. Eighteen morphological and seven behavioral traits were investigated for 882 individuals. Linear models were applied for each trait by fitting sex, season of birth, hair color or test age. The averages of body weight, body length, body height, and depth of chest were $20.5{\pm}2.4\;kg$, $57.3{\pm}4.2\;cm$, $52.1{\pm}3.6\;cm$, and $21.1{\pm}2.4\;cm$, respectively. Males had greater estimated values than females for these body conformation traits. The chocolate Sapsarees had greater averages for body weight, body height and chest depth. The older animals (>2 years) had heavier body weight than younger animals. About 54, 69, 97, 39 and 83.3% of the Sapsarees had hairs with yellow color, straight, medium to long, untangled, and longer around eyes, respectively. Also, about 40% brown eye, 43% curly tail, 78% normal jaw, 86% no missing teeth, 90% no dewclaw, and >90% with black nose, pendent ear, tongue without spots were observed. About 95% males were normal in testicles state. The males performed significantly better than the females for majority of the behavioral traits. For nerve stability, affability, wariness, adaptability, sharpness, activity, and reaction during blood drawn about 79%, 73%, 76%, 61%, 70%, 48% and 81% of the Sapsarees performed at desired level. In general, the Sapsarees showed good characteristics for both morphological and behavioral traits, which can be exploited to use the Sapsaree breed as a companion or guide dog.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제24권3호
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• pp.316-324
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• 2021

Purpose: The use of soy-based infant formula has increased widely in infants with cow's milk allergy (CMA). This study aimed to provide evidence on the growth pattern of CMA infants fed with soy-based infant formula in an Indonesian setting. Methods: A multi-site, intervention study was conducted among full-term and normal birth weight CMA infants. Within six months, the subjects were provided with a soy-based infant formula. Weight, height, and head circumference were measured at baseline, weeks 4, 8, 12, 16, 20, and 24. Adverse events were recorded by scoring atopic dermatitis and symptom-based clinical scores. Results: Based on the World Health Organization growth chart, we found that most of subjects had normal nutritional status for weight-for-age, length-for-age, weight-for-length, and head-circumference-for-age. There were statistically significant differences between baseline and end-line for weight-for-age, length-for-age, weight-for-length, and head circumference-for-age nutritional status. No allergic symptoms or intolerance toward soy formula were observed at the end of the intervention period. Conclusion: These results show that infants fed with soy-based infant formula have a normal pattern of growth.